参数资料
型号: XRD9827EVAL
厂商: Exar Corporation
文件页数: 8/36页
文件大小: 0K
描述: EVAL BOARD FOR XRD9827
标准包装: 1
系列: *
XRD9827
16
Rev. 3.00
CIS Mode Timing -- DC Coupled
(CLAMP disabled)
ADCCLK
tckhw
tcklw
tckpd
tap
Pixel N-1
Pixel N
tdv
Pixel N+1
CIS
tdv
[5:0]
[11:6]
N-8
MSB
N-8
LSB
N-7
MSB
N-7
LSB
N-6
MSB
N-6
LSB
N-5
MSB
N-5
LSB
DB
Figure 6. Timing Diagram for Figure 5
ADCCLK
Events
ADC Sample & PGA Start Tracking next Pixel
MSB Data Out
LSB Data Out
HI
ADC Track PGA Output
LO
ADC Hold/Convert
Table 1.
Mode 2. AC Coupled
If the CIS signal has a black reference for the video
signal, an external capacitor C
EXT is used.
When
CLAMP (clamp) pin is set high an internal switch allows
one side of the external capacitor to be set to ground.
It then is level shifted to correspond to the bottom ladder
reference voltage of the ADC (Figure 7).
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